Question

我的目的是通过Tkinter Text控件获取鼠标选中的文本。

部分代码：

self.Text1 = Text(top)
self.Text1.place(relx=0.07, rely=0.09, relheight=0.04, relwidth=0.34)
self.Text1.configure(background="white")
self.Text1.configure(font="TkTextFont")
self.Text1.configure(foreground="black")
self.Text1.configure(highlightbackground="#d9d9d9")
self.Text1.configure(highlightcolor="black")
self.Text1.configure(insertbackground="black")
self.Text1.configure(selectbackground="#c4c4c4")
self.Text1.configure(selectforeground="black")
self.Text1.configure(width=294)
self.Text1.configure(wrap=WORD)

self.Scrolledtext1 = ScrolledText(top)
self.Scrolledtext1.place(relx=0.46, rely=0.19, relheight=0.62
        , relwidth=0.4)
self.Scrolledtext1.configure(background="white")
self.Scrolledtext1.configure(font="TkTextFont")
self.Scrolledtext1.configure(foreground="black")
self.Scrolledtext1.configure(highlightbackground="#d9d9d9")
self.Scrolledtext1.configure(highlightcolor="black")
self.Scrolledtext1.configure(insertbackground="black")

def button_down(self,):
    global s
    s = self.Text1.index('@%s,%s wordstart' % (event.x, event.y))

def button_up(self, ):
    global e
    e = self.Text1.index('@%s,%s wordend' % (event.x, event.y))


def test(self,):
    print(self.Scrolledtext1.get(s,e))

self.Scrolledtext1.bind("<Button-1>", button_down)
self.Scrolledtext1.bind("<ButtonRelease-1>", button_up)
self.Button2.configure(command=test(self,))

Tkinter回调中的异常：

screenshot of traceback showing exception being generated

AttributeError: 'Event' object has no attribute 'Text1'

Answer 1

您的button_up，button_down和test函数不是绑定方法。因此，他们没有获得self参数。作为self传递的值实际上是一个Event对象。由于您在函数中使用self，我建议将它们更改为绑定方法。我假设您发布的代码是__init__方法。如果是这样，请将最后三行更改为：

self.Scrolledtext1.bind("<Button-1>", self.button_down)
self.Scrolledtext1.bind("<ButtonRelease-1>", self.button_up)
self.Button2.configure(command=self.test)

并将这三个函数移动为该类的成员：

def button_down(self, event):
    global s
    s = self.Text1.index('@%s,%s wordstart' % (event.x, event.y))

def button_up(self, event):
    global e
    e = self.Text1.index('@%s,%s wordend' % (event.x, event.y))


def test(self, event):
    print(self.Scrolledtext1.get(s,e))

实施例

这是你的课后应该看的样子。这三个事件处理函数都在类中。

class YourClassName:
    def __init__(self, *args, **kwargs):
        # initialization code
        # ...

        self.Scrolledtext1.bind("<Button-1>", self.button_down)
        self.Scrolledtext1.bind("<ButtonRelease-1>", self.button_up)
        self.Button2.configure(command=self.test)

    def button_down(self, event):
        global s
        s = self.Text1.index('@%s,%s wordstart' % (event.x, event.y))

    def button_up(self, event):
        global e
        e = self.Text1.index('@%s,%s wordend' % (event.x, event.y))


    def test(self, event):
        print(self.Scrolledtext1.get(s,e))

AttributeError：'Event'对象没有属性'Text1'

1 个答案:

实施例